Running algorithms,
(located under Algorithms menu), step by step on your graph and see how they work. this is very usefull for teaching graph algorithms. you can pause, and it shows the current state of algorithm by coloring edges and vertices. This is the best tool to learn and teach graph algorithms, currently involving:

DFS

BFS

Dijkstra

Kruskal

Prim

Maximum flow

Minimum cut

Inclusion-exclusion coloring

Acyclic checker

Approximated vertex cover

Biconnected components

Visualizing your graphs,
, you made a social network from your database and want to represent it in a meaningfull way? use the visualizations (located under Algorithms menu).

Present your graphs,
in your papers, websites or reports. GraphTea has a wide range of options to draw graphs, having different colors for edges and vertices. different borders and fonts and sizes and ... when you finish drawing your graph, you can save to a image file or even to a Latex document to put in your report. then you can use latexcad app, to further refine your graph.

and much more
you can make new graph generators, graph reports, file types, actions, algorithms by writing extensions. extensions provide a gateway to add new functionalities as simple as putting a file to extensions directory. you can write them using Java and Matlab. moreover you can write new extensions using any programming language that supports redis which includes almost any wellknown programming language. for more samples take a look at extensions directory